The Asian Roadblock is when a group of Asian students spread out over a sidewalk or other heavily trafficked walking route and decide to walk at 0.2 feet per hour. This phenomenon has been noticed at all universities across North America; experts speculate that it is a scheme set up by Chinese agents in order to stifle the progress of Western higher education.

Professor: "Why are you late for class?"
You: "Sorry, I hit an Asian Roadblock, I was stuck behind them for 30 mins."